Technopolis
Entertainment Technology & Design
To amuse, educate, and instill excellence in the live event production industry.
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February 2013
Qurious Quotes
Chipmonck and Bob See Correction
The Road Down Under
Safety Matters
The Night the Lights Went Out at the Super Bowl
APT Electrics Online
Video Lighting Design Workshop
One Great Night on Earth
QURIOUS QUOTES
Maya Angelou 

"Talent is like electricity. We don't understand electricity, we use it."


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New for 2013 - Online Classes! Now available, Entertainment Electrics Online.

Video Lighting Workshop
 
Doing More With Less Workshop

Entertainment Electrics and Controls Workshops
Perth - February 14, 2013
Adelaide - February 18, 2013
Melbourne - February 20, 2013
Canberra - February 22, 2013
Sydney - February 25, 2013
Brisbane - February 27, 2013
 
Entertainment Electricity, Power Distribution, and Controls
 
Productions Unlimited training event 2013.  
For more info, click here. 
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For the Record
Chipmonck (bottom) and Bob See.
Chipmonck (L) and Bob See, circa 1969.

Chris Langhart sent us the following information after the last issue incorrectly identified the date of the picture above.

 

After Carnegie Tech, now Carnegie Melon, I went to Syracuse University where the TD disappeared in my first semester. I therefore was in charge of five theaters for about four years there. After that I went to NYC to become the technical director of NYU, a new professional program started by Dr.'s Hoffman and Corrigan. This program achieved its academic status by taking on the Tulane Drama Review, at that time highly regarded journal of theater literature which included 10 or 12 doctorate level professors. There were many professionals there in various fields of directing, acting, technical, design, dance, the usual cauliflower of talents. Wolfgang Roth [from Germany] designer of many Ford and Lincoln Mercury shows in those days ran the design department with appearances from Ming Cho Lee, Bob Guerra, Jim Hamilton and other known professionals. In the lighting department we had Jules Fisher.

I was pretty much low man on the totem pole in the TD department coordinating on-site productions. Among my students were John Chester, Bob Goddard, John Tedesco, Richard Hartman, Bob See, and others who now lurk around the industry. This was a high-powered class to be in charge of and their interests went through the wall into what was then the Fillmore East, absolutely next door on second Avenue. I became acquainted with the situation walking to work from Fourth Street near the Hells Angels abode passing the Anderson Theater where the basic nucleus of the Fillmore started. There I met John Morris, Chipmonk, and Bill Hanley, as a result of seeing a marquee on which there appeared "Joshua light Show." I could not imagine who could be making a light show than the one I had known from working at WRCT radio as chief engineer at Carnegie. So I barged in to discover Bill Swartsbach and the many modified Carousel projectors [to separate motor power from lamp supply] as the total amount of alternating current in the place was about two legs of 60A and everything else was DC. in about three or four weeks all of this moved up 2nd Avenue northward to the bigger Lows Commodore, directly next to NYU's building called Central Plaza where TV shows used to rehearse in those days (operated by Bernie Burns and Paul Stone with Ratner's restaurant on the first floor). At that time NYU School of the arts consisted of four floors above Ratner's and about 70 feet of frontage for classrooms on fourth street adjacent (three floors). During that time I had also been working (draftsman and pricing) at "Design Associate Scenic Studios," an IATSE and USA scenic shop. (Coming to know the Fillmore people resulted in involvement with Woodstock later on.)

I don't know how long before that time Chipmonk had been working in the East Village at various music venues under the title of "Chipmonk Industries." During the time I was teaching at NYU, we had various class projects to ensure that all the newcomers knew how to handle all the processes and machinery of stagecraft. In addition to electrical work and the study of various sorts of dimmers, we had a materials course doing welding of aluminum, and steel, making things of fiberglass, wooden picture frames and boxes, and foam rubber pillows with piping and covers. There were also costume construction courses (taught by Sandra Jones, who later became my wife). Various of my technical people were required to do these projects. In particular Bob See was first involved with the costume course where large strong hands were not the right tools for sewing sleeves into bodices. Moving now into more mechanical arts there were the boxes and picture frames which with nonuniform wood, needed to come out square with proper angles and no gaps. Among the various students, it was revealed to me that in these wood projects the degree to which the corners would not quite fit with the box because of warpage and the like was known among them jokingly as the "see factor."

This story comes to you as a correction for the caption of your wonderful photo of Bob See and Chip recently published. When Bob started his lighting business (touring with Dylan), he called it "See Factor Industries," a combination of the moniker among the students and the "Industry" part from Chip's concern. 

 

Lighting designer Chipmonck (Edward Herbert Beresford Monck) now resides in Melbourne, Australia. In addition to an architectural lighting designer, he is the Director of Production for the One Great Night on Earth Music Festival (http://onegreatnightonearth.com.au). 

APT at CX Roadshow 2013

CX Roadshow
APT at CX Roadshow 2013 
APT is hitting the road down under in 2013. Richard Cadena will be joining the CX Road show, offering electrics and control systems classes from Perth to Brisbane next February, 2013. The good news is that the classes will be supplemented with online prep. Go online and read, watch videos, and test your knowledge before you come to the workshop, so you're already up to speed. Your time in the workshop is maximized and not spent learning the basics.

Entertainment Electrics Workshops at CX ROADSHOW 2013 ITINERARY
  • PERTH Thursday 14th February Perth Hyatt
  • ADELAIDE Monday 18th February Adelaide Convention Centre
  • MELBOURNE Wednesday 20th February Melbourne Convention Centre
  • CANBERRA Friday 22nd February National Convention Centre
  • SYDNEY Monday 25th February The Concourse
  • BRISBANE Wednesday 27th February Brisbane Convention Centre
For more information, visit www.APTXL.com or email us.
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SUSTAINABILITY & OCCUPATIONAL SAFETY
AVIM: Safety Matters

 

The tragedy this past weekend at Brazil's Kiss nightclub is just one incident in a history of nightclub disasters spanning back as far as the 1920s. In the past 13 years there have been a string of 10 notable nightclub fires around the world; from a December 2000 blaze in a dance hall in Luoyang, China which killed 309 people, to the 2003 Rhode Island Station nightclub fire that killed 194; and most recently the Kiss nightclub fire in Brazil which killed more than 200 people. 

According to the National Fire Protection Association (NFPA), there were almost 5,000 venue fires from 2000 to 2004, with an average of one death and 52 injuries per incident. While most venue managers understand how to prepare and hopefully prevent the injury and risks associated with crowds, dark interiors, staging, and pyrotechnics - these tragedies must be acknowledged, examined, and where possible, steps must be taken to avoid future incidents. 

  

To continue reading, click here.   

 
February 2013
ELECTRICS AVENUE

The Night the Lights Went Out on the Super Bowl

Super Bowl blackout
Actual picture from Super Bowl.

 

In case you missed it, nothing much happened during the Super Bowl after Jacoby Jones ran back the kickoff that started the third quarter. That's because the electricity in the Super Dome failed, leaving two teams and 100,000 fans mostly in the dark for about half an hour. What caused the failure?

 

I have no specific knowledge of the reason behind the event, but I do know that just a few minutes prior to the failure, Beyonce was rocking the 50 yard line with an impressive array of lighting and video displays. Could the failure be linked to the halftime show? Perhaps.

 

While massive Super Bowl halftime shows are nothing new, what is new is the predominance of LEDs, switch-mode power supplies, and pulse-width modulation. What do all of these have in common? They are all non-linear loads, which produce harmonics that can cause excessive current to flow in the neutral conductor of a 3-phase system. If that's not taken into account, then it can lead to failures of components like feeder transformers.

 

What's a non-linear load? It's anything that's plugged into the power distribution system that draws current in a waveform that's different than the applied voltage waveform. LEDs are non-linear loads because they convert AC to a pulse-width modulated current in order to drive the emitters and change their intensity. When the waveform changes from a sine wave to any other waveform, it produces harmonics, which are whole number multiples of the fundamental frequency. In North America, the fundamental frequency is 60 Hz and in Europe and Australia it's 50 Hz. Harmonics are currents, just like the fundamental current, except they have frequencies of 2 × the fundamental, 3 × the fundamental, 4 × the fundamental, etc. And just like any other current, they follow the same path as the fundamental, combining in the neutral conductor of a 3-phase system.

 

When the three phase currents return to the supply, they do so through the neutral conductor. Since the fundamental phase currents are 120˚ out of phase with each other, in a balanced 3-phase system they exactly cancel. The same is true of the second harmonic, except that when the frequency doubles, so does the phase angle between them. 

 

But the third harmonic is the villain. The third harmonic is three times the fundamental frequency, or 180 Hz in North America, and the phase angle is 120 Hz × 3, or 360˚. But since we're dealing with sine waves, 360˚ is exactly the same as 0˚, which means the phase current in every third harmonic is in phase with each other, so they reinforce in the neutral conductor. And that can cause a huge amount of current to flow in the only conductor that has no overcurrent protection.

 

What's puzzling is why the failure occurred after the halftime performance and not during it. It could be that the failure was unrelated to the halftime show, or it could be that the heat produced by the current draw from the show took some time to cause the failure. Any conclusion is purely speculation at this point, but my money is on a feeder transformer failure due to miscalculation of current draw.

 

The nature of our loads in the entertainment industry is changing. Unless we learn to deal with a largely non-linear system, we're doomed to repeat our failures. 

APT CLASSES ONLINE
New Online Training Now Available
APT Online classes now available.

January 21, 2013-Austin, TX-The Academy of Production Technology (APT), a global provider of tech training for the entertainment industry, has announced the launch of their new online classes available at http://bit.ly/Siv38x. The online classes are similar to the on-site classes with new added content.

"The online classes offer a lot of benefit and value because you can work through the material at your own pace on your own time," said Richard Cadena, founder of APT. "Plus, you don't have to take off work and miss a paycheck, and you don't have the travel expenses associated with attending an on-site class."

The classes are presented in short segments that are easy to follow. Each module includes a video and a short test to provide immediate feedback to measure your comprehension. There are also supplemental practice materials and supplemental videos to reinforce the learning process.

For a limited time, if you have previously attended a live training class then you are eligible to receive a 50% introductory discount. Just send an email to info@APTXL.com and ask for the introductory offer discount code.

To see a brief overview of the APT Online classes, visit http://vimeo.com/aptxl/intro.
 
For more information, email info@APTXL.com or visit www.APTXL.com.

 

VIDEO LIGHTING WORKSHOP
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ONE GREAT NIGHT ON EARTH
One Great Night on Earth One Great Night on Earth is the very first step in a process for social good. It's all about changing the way we think of others and assist our fellow man. We may make history though our intent is to make great change, to cultivate a global voice that shows we are humanitarians to the core. That we mean what we say and will do all we set out to. Rock music as a language crosses so many borders. It is brave, bold and means business.......and so do we. This idea is shared by all who have developed this fine project and the notion of "paying it forward" is one shared by our Production Director Chip Monck, the elder statesman of the production industry. We no longer choose to see what others will do in terms of making change and to assist those affected by natural disaster, we are the change. A bold statement, though one we are passionate about. Music is a language which generates the greatest energy. One Great Night on Earth looks to harness that energy, break new ground and change the face of fundraising.
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Richard Cadena
APT